Stromatolites are layered carbonate structures ... increasing atmospheric oxygen around 2.2 billion years ago during the Archean era. Understanding their formation is significant for both ...

Calcified metazoans in thrombolite-stromatolite reefs of the terminal Proterozoic Nama ... Nutman A. 1983. Sm-Nd studies of Archean metassediments and metavolcanics from West Greenland and their ...

Analysis of fossilised rocks known as stromatolites from more than two-and-a-half billion years ago has provided new insights into the conditions on Earth before the evolution of oxygen. Led by ...

Analysis of fossilized rocks known as stromatolites from more than 2.5 billion years ago has provided new insights into the conditions on Earth before the evolution of oxygen. Led by Northumbria ...

Focusing on the late Archean eon (3 billion years to 2.5 billion years ago), Professor Eiichi Tajika and his team simulated crucial aspects of Earth’s biological, chemical, and geological history.

Archean Chemical Industries Limited was originally formed as a Partnership Firm under the name of Archean Chemical Industries at Chennai pursuant to a Partnership Deed dated November 20 2003 which was ...

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.